diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index f89d401..4111d45 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -4,6 +4,7 @@
 
 * Fix running `dotnet test` with extra properties.
 * Add `DotNetTestSettings.GetLogger` to support custom loggers.
+* Don't send `-maxcpucount` argument when calling `dotnet test` with a dll.
 
 ## 5.21.1
 
diff --git a/src/Faithlife.Build/DotNetBuild.cs b/src/Faithlife.Build/DotNetBuild.cs
index b45d45e..2c40b07 100644
--- a/src/Faithlife.Build/DotNetBuild.cs
+++ b/src/Faithlife.Build/DotNetBuild.cs
@@ -989,7 +989,6 @@ public static void RunTests(this DotNetBuildSettings settings, string? path)
 						"test",
 						Path.GetFileName(path),
 						settings.GetVerbosityArg(),
-						settings.GetMaxCpuCountArg(),
 						.. loggerArgs,
 						"--",
 						"RunConfiguration.TreatNoTestsAsError=true",